Ordering Rational Numbers

A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.

To compare two rational numbers, convert them to a common denominator or decimal form, then determine which is greater or lesser.

Ordering numbers from least to greatest means arranging them in ascending order, starting with the smallest number and ending with the largest.

The decimal equivalent of 2/5 is 0.4.

To convert a fraction to a decimal, divide the numerator by the denominator.

The absolute value of a number is its distance from zero on the number line, regardless of direction. For example, |3| = 3 and |-3| = 3.

Two numbers are equal if they represent the same value, regardless of their form (fraction, decimal, etc.).

The greatest common factor is the largest positive integer that divides two or more numbers without leaving a remainder.

The least common multiple is the smallest positive integer that is a multiple of two or more numbers.

To find the least common denominator, determine the least common multiple of the denominators of the fractions.